Urgent !!Fuel filter changed now a gas smell inside the car after couple of hours

[mik36]

Hi all

Car has done 60k I changed the fuel filter for improved performance
Now it's running fine but after couple of hours there is a gas smell inside
I reseated the fuel sender seal and cap upto the mark
No leaks or wet at the fuel sender assembly

This is driving me nuts now as there is no cracks or wet inside car and there is a small smell after car is closed for couple of hours the smell goes away after opening the windows

But now sure please help

[Compeer]

Was the seal stuffed looking? like it was all squished down so when you put it back on it didnt seal right? seems weird , hope you get it sorted.